﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Left : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

        if (Session["users"] == null)
        {
            Response.Write("<script>alert('登录超时'); window.parent.location.href='/index.html'</script>");
        }
    }
}